| As elevators become more widely used,safety incidents continue to emerge.The commonality of elevators in life makes people pay much attention to the safety of elevators,and the social impact of elevator accidents is also very bad.Therefore,it is very necessary to analyze the influencing factors of elevator accidents effectively.Elevator safety includes the safety of three processes of installation,use and maintenance.The elevator accident is the process of human or material damage caused by the coupling of dynamic and static factors such as people,elevators and time.The occurrence of elevator accidents is not only caused by the failure of the elevator itself.In view of the multi-factor,contingency and ambiguity of elevator accidents,multi-angle and multi-level analysis of the influencing factors related to elevator accidents reveals the coupling between the influencing factors.relationship.The paper mainly uses the theory and method of data mining to collect the collected elevator accident information as the mining object,and preprocesses the raw data of the extracted elevator accident influencing factors,after cleaning,transformation and normalization.Process,get the data set used in the paper.Through the analysis of the influencing factors of elevator accidents,combined with the data,the elevator accident data set is used to construct the set of factors affecting the elevator accident.Using the decision tree C5.0 algorithm,the set of factors affecting the elevator accident is taken as the input variable,and the severity of the accident is taken as the output variable to construct the decision tree model of the influencing factors of the elevator accident.The decision tree model is run by means of the R language software platform,and the decision tree model of the influencing factors of elevator accidents and the multi-factor coupling rule set of major accidents are obtained.Analyze the set of influencing factors coupling rules and make recommendations for them.In the end,we will get the major accident situation of elevators that should be guarded against,and provide theoretical support for the safety supervision and accident prevention of relevant departments. |